Island



(No Model.) I J. R. NORTHRUP.

I CARRIAGE SPRING. No. 876,158. Patented Jan. 10, 1888.

ill/M61596 n. mus Phokwl-ilhographan Wuhingtou. u. c.

UNITED STATES PATENT OFFICE.

JAMES R. nonraanr, or ROCKY BRoox, RHODE ISLAND.

CARRIAGE-SPRING.

SPECIFICATION forming part of Letters Patent No. 376,158, dated January 10, 1888.

Application filed May 6,1887. Serial No. 237,334. (X model.)

To all whom it vnay concern.-

Be it known that I, JAMES R. NORTHRUP,

of Rocky Brook, in the county of Washington and State of Rhode Island, have invented certain new and useful Improvements in Carriage-Springs, of which the following, taken in connection with the accompanying drawings, is a specification.

The object of this invention is to provide a simple, ornamental, and efficient form of car riage-springs in which the vehicle-body is supported by four distinct and independent springs, each extending from one edge of the body transversely across beneath it with a gradual taper, and engaging at its extremity, by a suitable clip, with the side bar. I coil springs entirely around said bars forincreased elasticity, and at their inner and thicker ends bend them sharply inward and fix them by a staple securely within a recessin acrosspiece or spring-board on which the carriagebottom rests.

In the drawings, Figure 1 is a transverse section of the carriage-bottom and side bars, showing the rear axle and springin elevation. Fig. 2 is a detail in section on'the line av 00 of Fig. 1.

A is the axle; B, the rockerbar resting v thereon, andC O the side-bars fixed to the outer ends of the bar B, extending longitudinally to the corresponiug part over the front axle.

D is the bottom of the carriage'body,having near each end a sill, bedpiece, cross-piece, or spring-board, E, securely attached thereto. Parts serving as a reach are shown in section at F F, Fig. 1, being simply two rods extending from the rear axle to the front rocker-bar.

G G represent my improved springs, one pair of which is clearly shown in Fig. 1. Each spring is independent of the other and-tapers gradually throughout its entire length. The inner and thicker end. of each is bent to U shape, one arm of the U fitting into a longitudinal recess in the bed-piece or spring-board E, and bearing against the under side of the bottom D,while its other arm is prolonged obliquely across to the side bar on the opposite side of the body, and is,'by preference, coiled once around said bar. A suitable clip, H,

connects thetip of the spring flexibly or pivotally to the bar.

The short arm of the U at thethick end of the spring, while sunken in a recess in the metal, K, through which the prongs pass and on which the nuts bear. This strip is shown in both figures. The body or bottom D is firmly secured to the bed-piece. The thick ends of the springs being held rigidly in the recesses in the bed-pieces, it will be obvious that all the springs co-operate to resist transverse strains upon them caused by any undue longitudinal movement of the body D, and also that downward pressure upon any part of said body is borne by all the springs.

Having described this improvement, I claim- 1. The springs G G, made independent of each other, but arranged in pairs, each fixed firmly at its thickened end beneath one edge of the body D, bent sharply near such edge and extended transversely and obliquely beneath such body with a gradual taper, and connected to the side supporting-bar, substantially as set forth.

2. The carriage-body D, and recessed bedpiece or spring-board E, fixed firmly thereto, in combination with the independent springs G G, mounted in said recesses,and with the securing-staples, substantially as set forth. In testimony whereof Ihave signed my name to this specification,in the presence of two subscribing witnesses, on this 5th day of February, A. D. 1887.

JAMES R. NORTHRUP.

Witnesses:

J OHN G. PERRY, HOWARD B. PERRY. 

